Radiator bypass device



july 42% 193. F. M, YOUNG 2,164,605-

RADIATOR BYAss DEVICE l Filed Sept. l2, 1336 2 Sheets-Sheet l U* 'I NHMUI 30 Jh [IJMIPOI mhh I* NIM www, G u

FP50 M You/vs BY /SJ( fforney Emy 4 339 F. M. YOUNG 2,4,65

RADIATOR BYPASS DEVICE Filed Sept. l2, 1936 2 Sheets-Sheet? 4j FLL?, 8.

/Nl/E/v TOR FRED YOUNG the metals and form llets at the corners as indicated in Figure 6.

After completion of the core assembly as illustrated and described, the header caps 3l) and 3| are secured to the tube plates as follows: header cap 3| is conventional in shape; header cap 30 is provided with partition walls 32 forming L shaped chambers 33, in the bottom of which are provided openings 34 which register with the ends of tubes I6. A gasket 35 is positioned between the headers and partitions 32 and the tube plates whereby the tube ends I6 are operatively connected to chambers 33 and the tubes l0 are operatively connected to the headers. Flanged openings 36 register with chambers 33 and anged openings 31 register with the header chamber. The header caps are secured to the tube plates as indicated, by means of suitable steel bars 38 and bolts 39; thus the assembly is securely bound together and compartments 33 are isolated from the header chambers.

It is customary to provide lhousing members between the header ends. These members have for convenience been omitted. Clearly when rigid housings are supplied there is an added reason for applicant's expansion joints.

Headers 30 and 3l are operatively connected to the engine jacket preferably by means of rubber hose connections in the usual manner. I provide a thermally controlled valve whereby openings 36 are caused to receive the cooling liquid when its temperature is below a predetermined point, and when the temperature rises to the desired point, which is the point at which the engine will operate most economically, openings 36 are shut off and openings 31 are permitted to receive the cooling liquid. A unitary thermally controlled valve may be secured to these openings; thus a single hose connection may lead from each valve to the engine.

When the engine is started the temperature will rise quickly since the cooling liquid irst passes through tubes i6, and when it reaches the predetermined point, the thermostat regulator will cause the cooling liquid to pass through tubes i0.

In ,Figure 8 I illustrate a valve mechanism having la thermally sensitive device which is adapted to direct the cooling liquid through tubes i6 until it reaches a desired temperature after which this mechanism is adapted to direct the cooling liquid through the nned tubes.

I provide a bracket 40 which is suitably secured over inlets 36 and 31 as illustrated and having an inlet opening 4l which is suitably connected to the cooling jacket of the engine. This bracket is provided with outlet ports which register with ports 36 and 31 and a valve 42 suitably journaled on a shaft 43 and being adapted as is clearly illustrated, to either direct the liquid from inlet 4l to port 36 or from this inlet to port 31 as fol-y expanded enough to move this valve so as to drect the liquid into port 31; thus the action of this device will be automatic. I may however, elect to make use of a manually controlled valve.

Thus it will be seen that the cooling liquid will be thermally controlled; that the by-pass tubes may expand and contract independent of the core tubes and that they are secured to the tube plates in a manner which will insure against fractures and leakages.

Having thus shown and described my invention, l claim:

l. A radiator of the class described, comprising headers and finned tubes operatively connected therebetween, one of said headers having a partition forming a separate end compartment, a w

number of relatively large tubes operatively connecting said compartment to the adjacent end of the other header, openings on opposite sides f said partition and having means whereby the cooling liquid may be directed either through said large tubes or through said nned tubes, expansion joints in said large tubes to thereby permit unequal expansion between said large and nned tubes.

, 2. A radiator of the class described, comprising headers and nned tubes operatively connected therebetween, one of said headers having partitions forming separate compartments at each end, a number of relatively large tubes operatively connecting said compartments to the adjacent ends of the other header, openings on opposite sides of said partitions and having means Whereby the cooling liquid may be directed either through said large tubes or through said finned tubes.

3. A radiator as described in claim 2 including, expansion joints in said large tubes to thereby permit unequal expansion between said'large and `finned tubes.

FRED M. YOUNG. 

